Troubleshooting
Note: Before troubleshooting the system, make sure the gas shutoff valve is ON. The two most common causes of a malfunctioning gas appliance are:
1.Loose wiring connections
2.Construction debris clogging the pilot and/or gas control valve filter
OBSERVED PROBLEM POSSIBLE CAUSE | REMEDY |
Ignitor will not spark or pilot will not light
1.No gas supply, or shutoff valve is OFF
2.Air in gas line
3.Construction debris clog- ging pilot orifice
4.Low gas pressure
5.Kinked pilot line
6.Control valve knob is not opening
7.No power to unit or the ignition module or power transformer is bad
8.Vent damper not fully open
1.Check to see if you have gas supply and that equip- ment shutoff valve is opened
2.Repeat lighting procedure several times to purge all air out of lines. If after re- peated attempts appliance does not light, call for quali- fied service and repair.
3.Remove debris and dirt, inspect and clean any other possible obstructions
4.Contact your gas supplier to check pressure
5.Have a qualified technician replace pilot line
6.Replace control valve (Re- fer to Replacement Parts, page 20)
7.Check that main power is on and that all wire connec- tions are made correctly to ignition model (see Wiring Diagram, page 21). Check for 24 VAC at secondary side of transformer. If 24 VAC is present, and mod- ule does not operate, have module replaced, otherwise have transformer replaced
8.Open vent damper until fully locked in the OPEN position
Pilot will not stay lit | 1. | Loose wiring on thermopile |
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| to regulator valve. No mil- |
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| livolt current is being sent |
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| back to regulator |
| 2. | If valve knob and wall |
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| switch are in the ON posi- |
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| tion, probable defective |
|
| regulator valve |
| 3. | Vent damper not fully |
|
| open |
1.Check wiring connections.
Refer to wiring diagram shown in Wall Switch In- stallation, page 11
2.Have a qualified technician replace valve
3.Open vent damper until fully locked in the OPEN position
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